Specification: 1/ 3 SONY CCD visual presenter USB2.0 output A Bridge between Object Images and large-screen TV or projector A Right Hand for Educatioal Training and Business Conferences Multiple practical functions and simple and easy-to-learn operation guarantee each of you presentations will be successful; Cable connect: USB cable Lens: 8mm1/ 3 CS; Pixels: pixel of 4700, 000; Focus: Manual; Iris: fixed aperture; Tv system: PAL or NTSC; Lens rotation: 360degree/ horizontal; Mini illunination: 1.0Lux; Resolution: over 470 TV lines; Power supply: 12V/ 800mA Application: Classroom teaching; academic report; experiment presenting; teaching plan editing ; distance education